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Un universo de radiación
(Polytechnic University of Puerto Rico, 1998-06)
During the last two decades there has been an increase in the worrines of the people regarding the proliferation of electromagnetic fields and their effects on the human body. In this article we explain the basic principles ...
Nonoccupational noise exposures and their hazards: a literature review
(Polytechnic University of Puerto Rico, 1998-06)
Noise pollution has been extensively studied during the last 30 years. Although most of the government regulations protect the vast majority of the workforce in the in the United States, they fail to consider the workers' ...
Low-volume speech
(Polytechnic University of Puerto Rico, 1998-06)
This project is the outcome of the necessity of a female patient of Parkinson's disorder and hearing disability of having someone to tell her to speak louder when her voice level could not be heard. The idea was to build ...
New technologies in mathematics
(Polytechnic University of Puerto Rico, 1998-06)
Throughout the ages, the development of computational instruments runs parallel to the development of mathematics playing an important role in the dissemination of this subject matter and its applications. Nevertheless, ...
Vertebral arteries
(Polytechnic University of Puerto Rico, 1998-06)
During the investigation period, which lasted almost four months, we made a research of the vertebral arteries in the posterior part of the head in children. During this time we investigated the size, diameter and the blood ...
Formulación de un modelo lagrangiano de partículas para simular la difusión de contaminantes atmosféricos. I
(Polytechnic University of Puerto Rico, 1998-06)
One of the most relevant aspects the atmosphere is its capacity for transporting substances, heat or momentum vertically among different levels. This property is of fundamental importance in the troposphere because otherwise ...
Aplicación de sistemas de información geográfica en el análisis de la isla de calor urbana
(Universidad Politécnica de Puerto Rico, 1998-12)
An urban heat island has been described as the
difference in temperature between the city and its peripheral rural area. It is caused mainly by the growth of the city not taking into consideration the conditions previous ...
Historia de la ingeniería eléctrica, un formidable motor propuldor de la presente y futuras civilizaciones
(Universidad Politécnica de Puerto Rico, 1998-12)
In this article the reader will find a historic
account of the scientific discoveries that provided
the foundations of electrical engineering as a
profession. The article also presents a list of names
of those scientists ...
Aprendizaje mediante la colaboración grupal (Cooperative Learning)
(Universidad Politécnica de Puerto Rico, 1998-12)
This work illustrates the needs of exposing the
students to learning experiences that develop and enhance their capabilities for analytical critical thinking in the solution of problems. The work in small groups with ...
Seismic Study of Geosynthetic-Reinforced Slopes
(Universidad Politécnica de Puerto Rico, 1998-12)
This report was done as part of an internship
program sponsored by the NSF to learn and get
involved in an extensive research at the University of Washington. The research is related to issues associated to the design ...